Two postal delivery workers have different routes. They both travel from the post office, to neighborhoods to deliver mail, and then back to the post office. Which statement must be true about the two postal delivery workers?(1 point)
Responses
They have the same velocity.
They have the same velocity.
They each travel a distance of 0 miles.
They each travel a distance of 0 miles.
They each have a displacement of 0 miles.
They each have a displacement of 0 miles.
They travel the same distance.
Matt is walking at 1.25 miles per hour to the east. Jaime is walking at 1.25 miles per hour to the south. Which statement describes the movement of Matt and Jaime?(1 point)
Responses
They have the same speed and the same velocity.
They have the same speed and the same velocity.
They have different speeds and different velocities.
They have different speeds and different velocities.
They have the same speed but different velocities.
They have the same speed but different velocities.
They have different speeds but the same velocity.
What does a horizontal line on a position-time graph indicate about the object?(1 point)
Responses
The object is accelerating.
The object is accelerating.
The object has a position of zero.
The object has a position of zero.
The object remains still.
The object remains still.
The object has a constant, nonzero velocity.
They travel the same distance.
They have different speeds but the same velocity.
A force acts on an object. Which option describes an action that could prevent the object from moving?(1 point)
Responses
a force applied in the same direction with a greater magnitude at the same time
a force applied in the same direction with a greater magnitude at the same time
a force applied in the same direction with the same magnitude at the same time
a force applied in the same direction with the same magnitude at the same time
a force applied in the opposite direction with a greater magnitude at the same time
a force applied in the opposite direction with a greater magnitude at the same time
a force applied in the opposite direction with the same magnitude at the same time
a force applied in the opposite direction with the same magnitude at the same time
Which option is the force with the greatest magnitude?(1 point)
Responses
the force needed to lift a pencil
the force needed to lift a pencil
the force needed to lift a hairbrush
the force needed to lift a hairbrush
the force needed to lift a textbook
the force needed to lift a textbook
the force needed to lift a chair
The force needed to lift a textbook.
A box is against a wall. A person pushes on the box, but the box does not move. Is this situation an example of a force?(1 point)
Responses
No, this is not an example of a force because the box did not move.
No, this is not an example of a force because the box did not move.
Yes, this is an example of a force because gravity is pulling the box down.
Yes, this is an example of a force because gravity is pulling the box down.
No, this is not an example of a force because a force pulls an object.
No, this is not an example of a force because a force pulls an object.
Yes, this is an example of a force because a force is a push or pull.